Improvement in horseshoe-machines



, 2 sheets-sheen. A.. Y.'I. ROBERTS. HoRsEsHoE MACHINES.

No, 195,232, Patented sept.1e,ie77.

nu:I IN1 NEUE-RS, PROT UNITED STATES E T FFICE ANDREW ROBERTS, OF BOSTON, ASSIGNOR TO HIMSELF AND MATHER E.

' HAWES, OF SOMERVILLE, MASSACHUSETTS.

IMPROVEMENT IN HORSE'SHOE-IVIACHINES.

Specification forming part of Letters Patent No. 195,232, dated September 18, 1877 application filed December 26, 1,876.

10 all Iwhom it may concern:

Be it known that I, A. J. ROBERTS, of Boston, in the county of Suffolk and State ot' Massachusetts, have invented certain new and useful Improvements in Machines for Making Horseshoes, of which the followingis a speciiicationz The present inventionrelates to that class of horseshoe-machines in which the bar or blank from which the shoe is to be made is tirst bent about a former, of suitable shape, by forcing the bar and said former through a throat, and is then, and while on said former, pressed on its outer edge or side by side formers of suitable shape.

The invention consists in many novel arrangements ofthe parts making up such a machine, and in the combination of other parts therewith, whereby shoes can be made in a most expeditious, economical, and effective nianner, and complete in one operation of theinachine, all 'of which will most fully ap pear in the description hereinafter given, reference being had vto the accompanying plates of drawings. d

In Plate 1, Figure l is a plan view; Fig. L', a side view, and Fig. ll a detail view. Plate 2, Fig. 3 is a transverse vertical section ou line X Y, Fig. l. Fig. l is a transverse vertical section on line AB, Fig; 2; Figs. 5, 6, 7, 8, 9, and l0,views 1n detail.`V

In the drawings, A represents a bed or platform, which supports a table, O, having open ends B B' and a central longitudinal slot, D. This slot D ot' table C has ways aon each side, which support a horizontal plate, E, arranged to travel forward and back ou said ways, moving under a cross-piece, F, which is secured to the top of the table O.

Gr is a curved standard, which is fixed and supported on cross piece F, and carries in its ear pieces or bearings I I' a head-block, J, which is arranged to move up and down through said ear-pieces I I', and at its lower end is adapted to vreceive a holder, m, for the punches, hereinafter referred to, which are to punch the crease and nail-holes ot' the horseshoes formed in the machines.

H H are two levers, which vare arranged similarly, one on each side of the curved standard G, to swing in vertical planes,'each on a fulcrum, c, of said standard G.

These levers H H, at one end, are hung on pivots d of the vertical rod J, and at the other end they are hung to a common vertical toggle-lever frame, K K', which frame extends through the slot D of the table C, and has its lower arms K' pivoted to the bed A, which is suitably slotted to allow said arms K' to swing on said pivots as desired.

Lis a horizontal rod, Illing at one end to the elbow or knee joint ot' the toggle-lever frame K K', and .at the other end to the upper end of thelever M, which,in turn, is hung on a fulcrum of the bed A, and is arranged to be acted upon through its friction-roller g by the cam-slot N ot' a shaft, O, horizontally and longitudinally arranged on the bed A to turn in suitable bearings thereof', and by gearwheels L' L" to be driven in any suitable manner.

This cam-slot N is shaped to swing the lever M on its fulcrum forward and backward, once t'or each revolution of the shaft O, and during one-quarter of such revolution, and at allother times, to hold the said lever stationary. g

This forward and backward swing of the lever M operatesthrough the connecting-rod L 'on the toggle-lever frame K K', and through it and the levers H H on the head-block J, and gives to said head-block an up-and-down movement through its bearings I I'.

It is a vertical lever, which at one end is hung on a fulcrum of the bed A, and at the other endis pivoted to the horizontal sliding plate E, hereinbefore referred to, of the table C, and between its two ends it is arranged to be acted upon through its friction-roller h by the cam-groove Q ot' the driving-shaft O.

This cam Q is shaped to swing the lever R on its t'ulcrum in each revolution of the shaft O, once forward and once backward, and for said movements to be made each in an eighth part of the revolution of the shaft, and also to hold the saidlever twice stationary between and after said movements, on'ce for one-quarter and once for one-half of the revolution of the shaft.

This f'orward and backward swing of the lever R slides the horizontal plate E forward and backward on its guideways a of the table C, and through 'it operates the side formers U of the machine, which are to be now described, and their connection with it.

S S are two horizontal rods, both pivoted at one end to the sliding plate E, one on each side of the curved standard Gr, and' at the other end each to a similar horizontal curved lever T, each of which levers T'turns on a fulcrum of the table C and carries a former, U, which formers, at their peripheries or edges a, are shaped to entirely encircle the outer edge or side of the horseshoe, such as the machine is to make, and to come together at the straight part bL of their edges afi-that is, at the toe of the shoe.

The formers U are to be attached to their carrying-levers T by a screw or otherwise, so as to be readily attached and detached, if desired, to replace them with the same or other sizes and shapes, and they are disposed on their carrying-levers T, and said carrying-levers are disposed relatively to each other and to the axial line of the vertically-traveling head-block J, which carries the nail-hole and crease punches, as has been before stated, for the curved edges of the formers U, and nailhole and crease punches to act in proper relation to each other, and to the proper formation of a horseshoe, as will hereinafter more fully appear.

The formers U are operated, as before stated, by the cam Q of driving-shaft O, and this operation consists in swinging them toward and away from the axial line of the vertical punch-carrier or head-block J, and in holding them for one-half of a revolution of the shaft O in their forward position, and for one-quarter of a revolution of said shaft in their backward position. y

Vis a vertical lever, which, at one end, is hung on a fulcrum of the bed A, and at the other end is hung on one end of a horizontal arm, W, which, at its other end, is hung to the under side of a block, X', arranged for a forward and backward movement on a horizontal frame, Y, which is suitably supported by the table C in front of the vertical punch-carrier or head-block, J, and for said travel of the block X' to be in the direction of the length of the table and toward and away from the axial line of said punch-carrier or headblock J. This lever V, between its ends, hung as above described, is acted upon through its friction-roller p, by the cam-groove P of the driving-shaft O, and this camgroove P is shaped to swing the lever V on its fulcrum forward and backward once for each revolution of the shaft O, and during three-quarters of such revolution, and to hold the said lever stationary for the remaining quarter, and thus,

through the connecting-rod W, to slide the block X toward and away from the axial line of the vertical punch-carrier or head-block J, and to hold it in its forward position during one-quarter of the revolution of the drivingshaft O.

' X is the former for the inner periphery or contour of a horseshoe. This former X is carried by the slide-block X', and it is located thereon, so that in the above-described movement of the slide-block X' toward the vertical punch-carrier or head-block J, and in the above-described rest of said block in its forward position, it will travel over and lie upon the upper surface of the table C, and have its contour or edge c4, which gives the inner contour or shape to the horseshoe, in proper position relative to the shaping-edges of the side formers and the punches of the vertically-arran ged carrier or head-block J. This former X has a ange, d4, which projects from the upper contour or shaping edge c4 into a position to rest upon the upper surface ofthe horseshoe being made in the operation of this machine, and which, on its under face, is shaped to press and form, as may be desired, the upper surface of the horseshoe. This projecting iiange d4 of the former X is plainly shown in Fig. 8; also its contour in Fig. 7, and the inward-curving sides or edges f4 from the former proper back toward its carryingblock X'.

r r' arevtwo vertical rollers located on the table C, in a position for the former X to pass between them. These rollers r r' are flanged at their upper ends, and together they make a throat through which the former X passes in its forward and backward travel; and in the operation of this machine, as will hereinafter more fully appear, they act to bend the bar from which the horseshoe is to be made about the former X as such former passes inward and toward the side formers U U and the vertical axial liue of the head-block J, which carries the nail-hole and crease punches.

Z Z' are two levers, each hung to swing in a vertical plane on a fulcrum of the frame Y, and one on each side thereof. These two levers are operated upon, at one end, through friction-rolls there located, by similar curved cam slots or grooves 7c of the slide-block X', which carries the former X, and, at their other ends', the one lever, Z, is formed with jaws g4 of suitable sha-pe in cross-section to receive and grasp the bar from which a horseshoe is to be made; and the other lever, Z', is formed with a cutting-edge, i, (see Fig. 9,) suitable to cut the bar which is fed into the machine into lengths for making horseshoes.

The shape ofthe cam-slots k 7c is such as to swing the levers Z Z' in a vertical plane simultaneously, lowering their jaws g4 and cuttingedge '54, in the outward travel of the former X, from the side formers UU, and raising them, in the inward travel of said former X, toward said side formers U U.

which horseshoes are to be made is fed, andthe opening is disposed, together with the feed mechanism of the iron bar, so as to layV the bar, by the operation of its feed, across the line of travel of the former X, and in a plane above it, and at the saine time place the bar in the holding-jaws g4 of the lever Z, which lever Z, at that time, is in position to receive it.

The feeding mechanism of the iron bar or blank is as follows:

D' is a slide-block, arranged to be. moved horizontally in a suitable guideway of the frame-work G', forward to and backward from the opening 164, through said cutting-olf block Al E' is a spring-pawl hung on the upright wall of the slide-block D', with its engaging end toward the block A'.

F' is a horizontal connecting-rod hung at one end to the under side of the feed slideblock D', and at the other end to the upper end lof a vertical lever, H', which is hung at its lower end upon a fulcrum of theA bed A, and between its two ends is operated upon through its friction-roller t, by the cam-groove J', formed in the face of a disk, J", ot' the drivin g-shaft O.

This cam-groove J' is shaped for the lever H' to be swung forward and backward once for each revolution of the driving-shaft O, and during one half of the revolution,`and to be `held stationary during the other half of the same revolution, and thus, through the connecting-rod F', the feed slide-block D' for the iron bar is moved toward and away from the cutting-olf block A', and, from the disposition of said cam on the shaft O, held at rest in its position away from the block A' for one-half of each revolution of the shaft.

The holder m for the nail-hole and crease punches is placed by its socket end (see Fig. 10) over the lower end of the vertically-moving head-block J, and is there secured by a set-screw or bolt, or in any other proper manner.

m' is a die, having beveled projections and prongs n. 'lhe projections are of suitable shape to make or punch the crease in the horseshoe, and the prongs are of suitable shape and length, relatively to said projections, to punch holes through the thickness of the horseshoe to receive the nails by which the shoe is to be fastened to a horses hoof, and all the projections and prongs are in the saine line about the die, which is a line of curve corresponding' substantially to the curved outline of a horseshoe, and for the crease and nailholes to be made in the shoe near the outer edge. y

This die m' is fastened about the holder m by an encircling band or yoke, x, secured by a cross-bar, w, and screw-nuts w', and the lower or under face of the holder, within the beveled crease and nail-hole punching projec-I tions-and prongs, is situated in relation to said punches to press on the upper side of the former X, when such former is in its position within the side formers U U, and thus to bear and t-o hold its projecting flange d4 firmly down upon the upper face of the shoe which is inside of said punching projections.

QJ is a pin fastened to the inner face of the bar-holding lever Z, (see Fig. 1,) and in a position to knock the horseshoe, formed on the former X, oft' of it in the backward movement of said lever, as will hereinafter appear.

With the several cams N P Q J' properly disposed in relation to each other and to the revolution of the driving-shaft O, and with the feed-block D' for the rolled bar just about moving forward, the use and operation of the several parts of the machine above described are as follows: First place the rolled bar from which the shoes are to be made on the feedblock D', under its pawl E' and against its raised back, and set the end of the bar in the opening of the cutting-block A', and even with its inner or cutting face. New, turn the driving-shaft in the proper direction, and in the revolution of such shaft first the rolled bar, placed as described, is fed by the pawl E of its feed-block under the cutting-edge 4 of the cutting-lever Z', across Iand above the plane of travel of the former X into the holdingjaws g4 of the lever Z; second, the rolled bar so fedv is then cut off by the cutting-lever Z', and also, by such lever and the jaw-lever Z, pressed down into the plane of travel of the former X and to a rest on the upper face of the frame Y, just in front and across the throat of the rollers fr fr' and the opening j in the frame Y; third, the said cut-off piece of the rolled bar is then carried forward by the former X through the throat of the rollers r r', and by these rollers it is bent about the contour and under the tia-nge of the said former, and carried b'y said former X into position under the head-block J, which carries the punching and pressing die m, and within the side formers U U for the then action of such punching and pressing die and said side formers.

After this action ofthe punching and pressing die and side formers, they are withdrawn,

tleaving the shoe on the former X, which then carries it out of said side formers U, and from which former X it is knocked oi' by the knocker-pin ot' the jaw-lever Z, and discharged through the opening j before referred to, and which is suitably located therefor.

While a piece of the rolled bar, cut off, as stated, is being operated upon, as above described, the feed-block for the rolled bar is said feed-.blockremains-in its said. backward:

positionuntil its,operating-cam4 a'gain moves itforward, whendt .again carries forward and. placesthe'rolled bar, as has beenv described,v

forbeing again` cut` off, and the piece thenso cut oft' bent, and otherwise operateduponfbythe former X, rollers/r r', punchzand pressing.l die m, sidey formers U. U, and knockerfoff fv, ashas been describedand so on as longias the'driv-ingfshat't is: turned-v and. the feeding.-y block properly supplied withftherolled bar or; iron.

The forward :feed .and placing of` the; rolledbar` into .position to be lcut and pressed Edown, as aboveffstatechoccur in. propertime-for the after movements of4 thelevers-Z Z', wfhichcutv andpress-the bar down, and also. occurs in such'y relation tol thel then outward trav-el of jaw-lever. Z.

The punching and pressing die mv yand'side formersU U arermoved toward eachother after the former X has. com-einto position within their' plane of operation, and they` move away from each otherjust` prior to theoutward travelof the former X, and in time to fee the shoe to be carried out by said form. er

Frornthe description whichhas `been g-,iven` of my improved machine, it. is plain that a bar isalways rcadyto betaken by the former X, and without any interruption in the operation of the machine. Again, that'the shoeis pressed or swaged at konce on all sides, ontop, and bottom between the under face ot? the flange d4 of the former X and the upperface of the table (l, .and on its. outer and inner edgesfbetween the side formersU and the-contour of the former X, and, again,.that the creaseand nail-holes aremadein. the shoe, and that, in factin a single machine, andby one complete operation; thereof, afcomplete. and perfect shoe, pressed, creased,.andp.unched, is produced.

o are screws in thevlower end ot' thedieholder m, theheads of which make the bearing` `die-head m, andv betweenitand the-inner upgrighti'aceoff the die-plate. These grooves allow-water-to beiintroduced and passed `between 'the die m' and itsy headmz, solas to. coolo' thev die'from time tortimeor-.continuously,in the operation `of the machine.

I' claim,- and' desire.. to-securev4 by Letters fEat- 1ent-is- 1. In. a horseshoe-machine,.the combination lof: the.' transverseffeeder. D', the longitudinal former X-,rollers r r', the oscillating trans- ;verse. formers Uand1 pressing-die m, all Ecombined and operating substantially as described.`

2.. Levers-ZZ', pivotedI to the -guidefframe Y of formerXand. formedv in their forward ends,-,resp,ectively, with. jaws andvwith acutter, in combination with thecam kofthe traveling` formen Xi, *substantiallyl as and for the purposeswherein set forth;

3.V In :a horseshoeemachinma transversefeedv er havingav pivoted.. pawl or other suitable bar-holder, and arranged to travel on a frame, G', havin-ga cut-ofic block, A', in combination with a` for1ner,iX, framerzfY., ands levers Z Z', all arranged and operating substantially as specified, and for the. purpose. described.

4. Inua.horseshoe-machine, a rotating shaft, O, providedwith cams J, P, Q., and N, in combination with'the. several .mechanical devices describedconnectin g said camswith the feeder DI, formers X- U, and: pressing-die m, all arraugedland.operatingsubstantially as and for theV purp'osedescribed.

5. In a horseshoe-machine, theap'ressing-die m, having asocket'to. receive the head-block J, and recessed and curved on its front and sides'fto. receive Aa idie, andformed on its sides with` vertical.v grooves or channels q for the introduction of Vwater to .the bottom of the die, substantiallyy asvdescribed and for the purposes specied.

t6. The diem', curved in the contour of a horseshoe, andv formed onf its bottom with flanges and prongs, toY form the grooves and nailholes. ofltheshoe, and having a curved yoke, x, with screw ends, which extend Athrough a-crossbar,w,and are secured to it by screw-nutsw', all .substantially as herein set forth. l

7. The die-holder m, provided with a suitaI ble die, .arranged `and operating as` described, in combination with the formers U X, rollers rr', leversZ Z', and feeder D', all arranged and operating.:substantially as specified, and for: the purposes hereini set forth.

8. The `adj-ustinggfscrews o ofdie-holder m, forV the' purpose. specified, in combination with.theipunchingxand creasing die m', securedl about-the holder m, substantially as described.'

9. Thev projecting ange d4 of the former X, in combinationwith-the pressing-face of the die-holder m, substantially as described, for the purposespecited.

Having thus described my invention, whatv 10. The guide k* for the horseshoe-bar in its feed t0 the machine, which guide is arranged to guide the bar across and in a horizontal plane so different from the horizontal plane in which the longitudinal former X travels that the feed of said bar can occur while the said former is moving, and without interference therewith, in combination with mechanism, substantially such as herein described, which is arranged to receive the said bar, when fedA as aforesaid, and to carry it into the horizontal vplane of movement of the longitudinal former X, all substantially as and for the purpose specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ANDREW J. ROBERTS.

Witnesses:

SAML. M. BARTON, CARROLL D. WRIGHT. 

